Two Machines
noun
When you combine these two kanji, you should be able to see how it forms the word two machines.
にだい
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
母にスポーツカーをニ台プレゼントした。
I gave my mother two sports cars as presents.
わたしのデスクにはモニターがニ台あります。
There are two monitors on my desk.
しごととプライベートで、スマホをニ台もちしてる人はたくさんいる。
There are many people who have two smartphones; one for work and one private.